{
  "id": "hep-ph/9504411",
  "version": "v1",
  "published": "1995-04-27T16:20:04.000Z",
  "updated": "1995-04-27T16:20:04.000Z",
  "title": "EMBEDDED DEFECTS AND SYMMETRY BREAKING IN FLIPPED $SU(5)$",
  "authors": [
    "Anne-Christine Davis",
    "Nathan F. Lepora"
  ],
  "comment": "21 pages, LATEX",
  "journal": "Phys.Rev.D52:7265-7275,1995",
  "doi": "10.1103/PhysRevD.52.7265",
  "categories": [
    "hep-ph",
    "hep-th"
  ],
  "abstract": "We explicitly show the analogy between the symmetry breaking scheme for the GUT flipped $SU(5)$ with that of the Weinberg-Salam theory of electroweak interactions. This allows us to construct the embedded defect spectrum of the theory flipped $SU(5)$. We find that the spectrum consists of twelve gauge-equivalent unstable Lepto-quark strings, which are analogous to W-strings in electroweak theory, and another string that is gauge inequivalent to the Lepto-quark strings, which we call the `V-string'. The V-string is analogous to the Z-string of electroweak theory, correspondingly admitting a stable semilocal limit. Using data on the running coupling constants we indicate that in the non-supersymmetric case V-strings can be stable for part of the physically-viable parameter space. Cosmological consequences are briefly discussed.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1995-04-27T16:20:04.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "electroweak theory",
      "gauge-equivalent unstable lepto-quark strings",
      "non-supersymmetric case v-strings",
      "symmetry breaking scheme",
      "weinberg-salam theory"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. D"
    },
    "note": {
      "typesetting": "LaTeX",
      "pages": 21,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 394617
    }
  }
}